Tension Spring * Material: spring steel, etc * Wire Dia: 0.1 ~ 8.0mm * Finish: Zinc, Nickel, etc * OEM Service Avaliable Tension SpringWe produce extension springs with machine hooks, crossover hooks, extended hooks, side loop, or other special ends. It's made from your drawing or sample as a one off or large production run, available in a wide range of materials and finishes. 1. Capabilities: ...